Pin pulling device

The pin pulling device comprises a frame body, and a plurality of first limiting holes are formed in the frame body; the lead screws are inserted into the corresponding first limiting holes, the lead screws can move in the axial direction of the first limiting holes, the lead screws penetrate through the frame body, and one end of each lead screw is used for being in threaded connection with the corresponding pin body; and one end of each telescopic piece is used for being installed on a part to be subjected to pin pulling, the other end of each telescopic piece is connected with the frame body, and the telescopic direction of the telescopic pieces is the same as the extending direction of the lead screw. According to the pin pulling device, the angle of the frame body can be adjusted by adjusting the telescopic amount of the telescopic piece located between the part to be subjected to pin pulling and the frame body, the requirement for the angles of the multiple lead screws on the frame body is met, compared